div {
  width: 300px;
  height: 80px;
  border: 2px solid brown;
  background-color: #b3d4fc;
  font-size: 32px;
  font-family: 微软雅黑, serif;
}
span {
  border: 2px dashed greenyellow;
  font-size: 32px;
  font-family: 微软雅黑, serif;
}
